[Pulmonary circulation in constrictive pericarditis].
Certain indices of pulmonary haemodynamics were determined at rest in 39 patients with constrictive pericarditis. The most frequent anomaly was raised value of total pulmonary resistance (in 82% of cases) and, in a lower percent, raised pulmonary vascular resistance. The systolic pressure in the pulmonary artery was raised in 30.8% of the patients, reaching values regarded as low or medium degree hypertension. In only 2 cases the systolic pressure in the pulmonary artery was 100 mm Hg or more. The systolic pressure in the pulmonary artery showed a slight positive correlation with the end-diastolic pressure in the left ventricle, and the subgroup with pulmonary hypertension had higher average values of the end-diastolic pressure in the left ventricle than patients with normal pressure in the pulmonary circulation (means = 21.0 +/- 5.7 vs 15.2 +/- 6.5 mm Hg). These results show a significant role of increased filling pressure of the left ventricle in the mechanism of pulmonary hypertension in patients with constrictive pericarditis.
Dubiel
J P
JP
I Kliniki Kardiologii, AM w Krakowie.
Kolasińska-Kloch
W
W
D000293:Adolescent; D000328:Adult; D000368:Aged; D001794:Blood Pressure; D005260:Female; D006801:Humans; D006976:Hypertension, Pulmonary / Q000209:etiology / Q000503:physiopathology; D008297:Male; D008875:Middle Aged; D010494:Pericarditis, Constrictive / Q000150:complications / Q000503:physiopathology*; D011651:Pulmonary Artery / Q000502:physiology; D011652:Pulmonary Circulation / Q000502:physiology*; D014655:Vascular Resistance / Q000502:physiology
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